Gaya APA
Royse, David. (1996).
Program evaluation : an introduction (3rd ed.).
Wadsworth:
Thomson Learning.
Gaya Chicago
Royse, David.
Program evaluation : an introduction.
3rd ed.
Wadsworth:
Thomson Learning,
1996.
Text.
Gaya MLA
Royse, David.
Program evaluation : an introduction.
3rd ed.
Wadsworth:
Thomson Learning,
1996.
Text.
Gaya Turabian
Royse, David.
Program evaluation : an introduction.
3rd ed.
Wadsworth:
Thomson Learning,
1996.
Print.